<h3>
Answer:</h3>
1. Solutions: x = 3.4, 10.6
2. Solutions: ,
3. Solutions: x = -1, 11
<h3>
Step-by-step explanation:</h3>
Quadratic formula:
Quadratic equation: ax² + bx c = 0, where a ≠ 0
1. x² - 14x + 36 = 0
a = 1, b = -14, c = 36
Substitute the given values into the formula:
Separate into two cases:
and
2. x² + 7x + 16 = 0
a = 1, b = 7, c = 16
Substitute the given values into the formula:
Imaginary number rule: For any positive real number "k",
Notes: Two imaginary solutions indicate that the graph will not intersect the x-axis. As a result, it has no real roots.
Separate into two cases:
3. x² - 10x - 11 = 0
a = 1, b = -10, c = -11
Substitute the given values into the formula:
Separate into two cases:
and
Hope this helps!
Learn more about quadratic equation here:
brainly.com/question/27729447
Answer: The same trip will require 3.8 hours.
Step-by-step explanation:
Since we have given that
Time =
Speed = 55 mph
So, distance would be
If the speed limit = 65 mph
So, time will be
Hence, the same trip will require 3.8 hours.
<span>if it is travelling 20 feet in 1/5 of a second that means that in 1 second (which is 5 times as much as 1/5 of a second) it will do 5 times 20 feet hence 100 feet. Then in 3 seconds it will do 300 feet</span>
Answer is 50
Reason
Using Pythagorean theory
a^2 + b^2 = c^2
a and b are the legs, the hypotenuse is c
14^2 + 48^2 = c^2
2500 = c^2
Now take the square root of both sides
50 = c
The answer is really 4 2/3 dozen cookies or 56 cookies.
96 - 40 = 56 cookies
8 - 3 1/3 = 4 2/3
24/3 - 10/3 = 14/3 = 4 2/3 dozen or 56 cookies